05 has 06 pistons. 05 has a LH side displacemnt washer

[ttreewalkerr]

I bought my 05 900 from original owner,, he claims he had nothing done to it but updates... Today i started takin stuff offf to pull motor and put the 06 top end in i bought. After loooking in exhaust port and seeing piston i noticed the beef between the rings,, so i pulled out my NEW 06 pistons and made a measurment strip, and stuck the strip in exhaust port layed on existing piston,, it matches,, top of piston, to first ring, and second ring. its a 06 piston..
Did the factory do this on some 05's ?

Also noticed the LH side rear engine mount has a displacemnt washer and displacment stop.. It is not the same as the 06, cause i bought them and have them on the floor, it's similar on my 05 but not exact.. On the exploded views of 05's there was not this stop & washer.
Did the facory do this on some 05's ?

 

[Z-Man]

If the dealer had the engine open they swapped the pistons or if someone did a top end they would have.

One of the recalls had a big washer with a notch in one side that went on the left rear motor mount on the 05.

http://cgi.ebay.com/ebaymotors/05-P...imiter-kit-2203079-/280562133702#ht_500wt_956

 

[ttreewalkerr]

Yes, that is what is sold as 06'. And i did buy that already. Just was suprized to see somthing a little different on my 05.. a round washer w/ no notches, and a round urathain puck, no notches. I have not yet removed it,,, coming soon.

 

[ttreewalkerr]

i seen in Team Tips, the section cut of 05' pistons VS. 06'..... i did a look and seemed spot on as 06' match to new ones on my bench... is it quite obvious in spacing the difference ?

Just want to make sure my tolerance w/ my eye in pen mark width isn't off.. is it like 1mm differ. in spacing between rings on 05 to 06 ?

 

[Super Dave3]

Yes, that is what is sold as 06'. And i did buy that already. Just was suprized to see somthing a little different on my 05.. a round washer w/ no notches, and a round urathain puck, no notches. I have not yet removed it,,, coming soon.

The washer and puck were one of the TSB's that they had in 05. The early version had no notch and the later version had a notch. The notch was intended for a unit that might have electric start. Either version will work just fine, but if you purchase a new one you will get the version with the notch since they phased out the round version.